OCD Problems, Please help?

Okay, I honestly feel like I am going to go insane. I have obsessive-compulsive disorder. I was diagnosed with this disorder when I was 16. My main struggle is with order and cleanliness. I need everything dust free and lined up perfectly. I recently moved into a new apartment and I was dusting like crazy, picking up nearly imaginary specks of dust off the floor. It gets RIDICULOUS to say the least. This is the issue: I WAS getting better, until I had cleaning day ( clean bathtub, toilet, etc...) Then I get SOOOO OBSESSIVE. It is almost as if I get better up UNTIL cleaning day then I go apesh**. Anyone know why this could be? Please tips. :[ I am literally going nuts.